The Atelier de Construction de Puteaux (APX) (English translation: "Puteaux Construction Workshops") was a state arsenal belonging to the French Army.
The factories also produced small and medium-sized equipment (firearms and knives), while the so-called “manufacturing” workshops produced larger equipment (artillery pieces).
[2] Atelier de Construction de Puteaux disappeared after the Second World War, being transferred to Satory and merged with Ateliers de construction d'Issy-les-Moulineaux (AMX), which specialized in the construction of tanks and other armored vehicles.
It specialized in small arms and medium caliber weapons and their accessories: such as machine guns, cannon, tank turrets, Telescopic sights for rifles, missiles etc.
And for serial production of those weapons, alone or concurrently with other factories.